I’m getting the following error message: when using yarn 4.1.0 Error: Command "yarn install" exited with 1

Switching to a different version of yarn didn’t fix the issue. I had to disable the ENABLE_EXPERIMENTAL_COREPACK flag for it to start working. This also required me to switch over to using a yarnPath in my .yarnrc file and add the corresponding yarn binary to the repo.

Hey @josh-protectaico . This is very little info to work from. Can you share more error details and some more information about your project?

Yes, apologies. We’re using yarn 4.1.0 with corepack and our Vercel preview builds are immediately failing when running yarn install. The full error message is: Error: Dynamic require of "util" is not supported at file:///vercel/path0/.vercel/cache/corepack/home/v1/yarn/4.1.0/yarn.js:4:394 …

Thanks for posting this update! I was able to dig up some information about Yarn v4 and can confirm that it is not officially supported on Vercel. That’s likely the reason for the Corepack error. If you switch to an earlier version of Yarn, does that eliminate the error?

Error: Dynamic require of "util" is not supported

Help

amyegan (Amy Egan) August 6, 2024, 11:49am 7

I’m glad you found a solution! Thanks for letting us know what worked for you.

Topic		Replies	Views
Yarn 4 support Feedback	10	503	April 7, 2025
New corepack lockfile check is too strict Feedback	3	166	September 10, 2024
Pnpm install failing Help	2	388	December 19, 2025
Yarn V4 using env variable in yarnrc Help	0	235	May 16, 2025
Unable to use npm for `vercel dev` in local. Uses yarn instead Help express , builds	4	441	June 23, 2025

Error: Dynamic require of "util" is not supported

Related topics